Thaum engineers qhia cua teem xuab zeb casting rau cov khoom hlau precision, lawv tsis xaiv txoj hauv kev qub-lawv xaiv cov txheej txheem pov thawj, qhov ruaj khov rau cov khoom siv uas yuav tsum muaj sia nyob siab, thermal cycling, thiab hnav abrasive. Tsis zoo li cov xuab zeb ntsuab lossis tsis muaj qhov ci ci, huab cua teeb tsa xuab zeb tso siab rau ntawm huab cua noo noo thiab qhov kub thiab txias los kho cov binder-tsis muaj qhov cub, tsis muaj catalysts, tsis muaj cua txias. Qhov kev yooj yim no npog qhov kev ua haujlwm tiag tiag: ua tiav ± 0.15 hli kam rau ntawm 300-mm cobalt alloy twj tso kua mis tsis yog hais txog "tsuas yog siv xuab zeb." Nws yog hais txog binder chemistry tswj, pwm compaction repeatability, core geometry tuav thaum shakeout, thiab post-cast dimensional stabilization ua ntej machining.
Peb tau nrum ntau tshaj 12,000 AMS 5387 cobalt alloy nozzles nyob rau hauv peb lub xyoos dhau los - txhua tus nrog phab ntsa thicknesses nyob rau hauv 4.2 hli thiab sab hauv ntws passages yuav tsum tau CMM-tshuaj xyuas GD&T ua raws. Nyob rau hauv txhua txhua batch, cov txheej txheem huab cua tau xa cov kev ntxhov siab qis dua li cov khoom siv sib xyaw ua ke, txo qis kev ua haujlwm tom qab ua haujlwm los ntawm 37% ntawm piston twj tso kua mis lub tog raj kheej. Qhov ntawd tsis yog theoretical. Nws tau ntsuas ntawm peb Zeiss CONTURA G2 kev tswj xyuas lub tshuab ntsuas, nkag mus rau ib feem, taug qab tau cov khoom siv hluav taws xob kub thiab pwm ntau IDs.
Vim li cas qhov no tseem ceeb? Vim tias huab cua teeb tsa xuab zeb tsis yog qhov poob qis-nws yog lub tswv yim ua kom muaj txiaj ntsig rau lub hom phiaj tseem ceeb geometries qhov twg microstructure kev ncaj ncees thiab qhov ntev ntawm kev kwv yees ntau dua qhov nrawm nrawm. Xav txog lub hydraulic siab valve lub cev: machined los ntawm cov khoom stainless hlau, nws yuav tsum tau 18 teev ntawm ntau axis milling thiab tsim 62% cov khoom pov tseg. Cam khwb cia ntawm huab cua teeb xuab zeb, qhov ze-net zoo tuaj txog nrog 92% ntawm qhov kawg huab hwm coj tsis zoo, tsawg sab hauv porosity (ASTM E155 Theem 2), thiab tsis sib xws dendritic qhov sib txawv tau lees paub los ntawm metallographic cross-section. Qhov tshwm sim? Tus nqi qis dua, lub sijhawm ua haujlwm luv dua, thiab - qhov tseem ceeb - zoo dua qaug zog tiv thaiv ntawm qhov siab siab tshaj 420 bar.
- Khoom siv fidelity: Cua teeb binders (feem ntau sodium silicate + CO₂ activator los yog organic ester systems) qhia negligible carbon pickup. Qhov ntawd khaws cia lub qhov rais nruj chemistry xav tau rau T800 cobalt-raws li alloys - qhov twg txawm tias 0.03% cov pa roj carbon ntau degrades kub hardness.
- Pwm stability: Tsis muaj cov tshuaj tiv thaiv exothermic txhais tau tias tsis muaj thermal shock rau pwm thaum lub sij hawm nchuav. Peb niaj hnub ncuav 1100 ° C molten cobalt-nickel rau hauv pwm tuav ntawm 22-28 ° C ambient-tsis muaj blistering, tsis muaj nto veining.
- Dimensional sib xws: Pwm expansion yog kwv yees thiab tawm. Nyob rau hauv engineering tsheb winch center ncej chais (OD 215 mm, ntev 480 mm), peb tuav roundness nyob rau hauv 0.08 mm nyob rau hauv 100-unit ntau-tsis muaj kev ntxhov siab-relieving theem nrab.
Qee tus yuav sib cav tias huab cua teeb xuab zeb tsis muaj qhov kawg ntawm kev nqis peev casting. Muaj tseeb-tab sis nto roughness Ra 6.3 µm yog txaus rau kev ua haujlwm mating nto ntawm lub hauv paus twj tso kua mis thiab valve manifolds. Qhov twg ua tiav qhov tseem ceeb, peb koom ua ke precision CNC tig * tom qab * casting - tsis ua ntej. Cov kab ke no zam kev ua haujlwm tsis sib haum los ntawm kev ntxhov siab residual nyem. Peb kuj zam cov cuab yeej ntawm ntau tshaj qhov tshwj xeeb binder zog: sodium silicate ntau dhau ua rau pwm brittleness thiab core breakage txaus ntshai thaum tuav. Peb qhov kev tsim kho kom zoo siv 3.8% binder los ntawm qhov hnyav, kho 45 feeb ntawm 55% RH-validated thoob plaws peb lub caij hauv Qingdao cov av noo ntawm ntug dej hiav txwv.
Ntawm QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., peb cua teeb xuab zeb casting Hoobkas ua hauj lwm raws li ib tug ntawm ib tug nruj nreem ua hauj lwm ua hauj lwm-tsis yog ib tug cais foundry bay. Thaum tus neeg siv khoom xa daim duab kos rau qhov tsis yog-tus qauv cobalt alloy plug, peb cov txheej txheem pib nrog kev tshuaj xyuas metallurgical: Puas yog AMS 5387 yog qib zoo-lossis yuav hloov T800 xa cov kev pabcuam zoo dua hauv cov dej ntsev? Tom qab ntawd tuaj pwm tsim simulation: Puas yog lub rooj vag kaw lus pub rau nyias-walled seem ua ntej daim tawv nqaij khov? Tsuas yog tom qab ntawd peb tsim cov qauv, sib tov xuab zeb, thiab ncuav. Txhua kauj ruam pub cov ntaub ntawv rov qab rau hauv peb ISO 9001-certified zoo voj-cov ntaub ntawv pov thawj nkag, tensile tuav kuaj ib ASTM A781, ultrasonic soj ntsuam ua nyob rau hauv tag nrho cov phab ntsa > 25 hli tuab.
Qhov kev sib koom ua ke no muab cov neeg yuav khoom xav tau tiag tiag: cov khoom uas haum, ua haujlwm, thiab kawg - tsis yog cov khoom thauj khoom xwb. Rau North American oilfield khoom OEMs, uas txhais tau hais tias siab li qub muaj sia nyob 12,000 cycles ntawm 350 ° F yam tsis muaj to. Rau European engineering tsheb tsim, nws txhais tau tias winch ncej rollers tswj concentricity tom qab 500 teev ntawm kev thauj mus los. Rau cov neeg Esxias sab hnub tuaj lub twj tso kua mis, nws txhais tau hais tias lub tog raj kheej vaj tse tuaj txog nrog cov tshuab datum twb nyob rau hauv ± 0.05 hli-npaj rau kev sib dhos zaum kawg, tsis rov ua dua.
Yog tias koj tab tom ntsuam xyuas cov neeg muab khoom siv rau kev txiav txim siab, nug peb nqe lus nug: Lawv puas tuaj yeem qhia CMM cov ntawv ceeb toom rau koj qhov tshwj xeeb geometry - tsis yog cov qauv qauv? Puas yog lawv tswj kev sib xyaw ua ke, pwm kho, thiab tshem tawm qhov tsis sib xws hauv lub sijhawm tiag tiag-lossis cia siab rau cov neeg siv kev paub ib leeg? Thiab lawv puas txuas cov txheej txheem casting cov ntaub ntawv rau qhov kawg ntawm kev ua haujlwm hauv kev siv teb? Ntawm peb qhov chaw, cov lus teb rau tag nrho peb yog yog-thiab sau tseg hauv txhua cov ntaub ntawv tsim khoom. Precision tsis ua tiav hauv qhov chaw machining. Nws pib hauv cov xuab zeb.
